docs: def _process(self, data):
          """
          Process indexer data
          """
          indices = []
          for indexname, indexdata in list(data.items()):
              idata = []
              for docname, docdata in list(indexdata.get("mappings", {}).items()):
                  o = get_field(docname, docdata, document_object_field=self.document_object_field, is_document=True)
                  o.connection = self.connection
                  o.index_name = indexname
                  idata.append((docname, o))
              idata.sort()
              indices.append((indexname, idata))
          indices.sort()
          self.indices = OrderedDict(indices)